Earth Science Ch. 13

Turbidity currents are underwater tornadoes.

How did submarine canyons form according to young earth scientists?

Mean sea levels are currently dropping.

Off of which continent is the largest barrier reef located?

Aphotic and Abyssal zones are well lighted areas.

Nitrogen and Carbon cycles are only functional in the atmosphere.

Cyanobacteria is the only way to fix molecular Nitrogen.

Benthic organisms are drifters and active swimmers.

The zero point for elevation, depth, and altitude is local sea level.

In which way are we dependent on existence of the ocean?

Oxygen is more abundant in which zone?

What are underwater ridges of rocklike structures formed by organisms?

The abyssal plain is the flat ocean floor.

Sodium Chlorine (Table Salt) is the salt found in oceans.

What kind of scientist is an oceanographer?

Which ocean basin is the largest?

Seawater gets warmer at greater depths due to the increased atmospheric pressure.

Gases are absorbed into the ocean water.

Brackish water is

Nitrogen has to be fixed in order to be moved from its molecular form to a usable organic form.

Which zone requires organisms to be extremely tough?

Seamount Chains are mountain ranges at the edge of oceanic tectonic plates.

Coral reefs are formed from small skeletons by activity of organisms.

The photic and littoral zones are similar.

Which statement is false regarding minerals being removed from the ocean?